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 SM ISO690:2012KUKHTAREV, Nickolai, KUKHTAREVA, Tatiana, EDWARDS, Vernessa M., SARKISOV, Sergey, CURLEY, Michael J., WANG, J.W., ROTARU, Vasile, KORSHAK, Oleg, DRAGALINA, Galina, ROBU, Stephan V.. Optical channeling and diffraction in photorefractive crystals and chalcogenide films. In: Proceedings of SPIE - The International Society for Optical Engineering, Ed. 8, 20 noiembrie 2002, Seattle, WA. Bellingham, Washington: SPIE, 2002, Ediția 8, Vol.4803, pp. 21-30. ISSN 0277-786X. DOI: https://doi.org/10.1117/12.452625 |
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 Proceedings of SPIE - The International Society for Optical Engineering Ediția 8, Vol.4803, 2002 |
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Simpozionul "Photorefractive Fiber and Crystal Devices: Materials, Optical Properties, and Applications" 8, Seattle, WA, Statele Unite ale Americii, 20 noiembrie 2002 | ||||||
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| DOI:https://doi.org/10.1117/12.452625 | ||||||
| Pag. 21-30 | ||||||
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We have studied holographic grating recordings in Fe-doped photorefractive crystals LiNbO3 (LN), in doped As-S-Se chalcogenide glassy semiconductors (CGS), and in CGS based photothermoplastic structures (PTPS). Transmission gratings in a-cut crystals of LN were efficient enough to demonstrate the effect of optical channeling. Volume gratings recorded in LN crystals may be used as a parallel array of the planar waveguides. For CGS, slanted grating geometry was tested, with the goal being the creation of asymmetric blazed gratings. Asymmetry of non-Bragg diffraction orders was observed. For the first time, reflection volume grating were recorded in 2μm thick CGS by green solid-state laser (λ=532nm, P=100mW). We have also tested the possibility of single beam contact recording in LN, using CGS with recorded grating as beam-splitter attached to the surface of LN. |
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| Cuvinte-cheie chalcogenide glassy semiconductors, Holographic blazed gratings, Non-Bragg diffraction, Optical channeling, Photorefractive crystals, Volume gratings |
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